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Finding the Fourth Proportional to 72,192.69, 108,281.95 and 22,259.30

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Solution

The fourth proportional to 72,192.69, 108,281.95 and 22,259.30 is: 33,386.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,192.69 : 108,281.95 = 22,259.30 : x
  2. Step 2: Convert to fraction form
    72,192.69/108,281.95 = 22,259.30/x
  3. Step 3: Cross multiply
    72,192.69x = 108,281.95 × 22,259.30
  4. Step 4: Simplify right side
    72,192.69x = 2,410,279,812.58
  5. Step 5: Solve for x
    x = 2,410,279,812.58/72,192.69
  6. Step 6: Final answer
    x = 33,386.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.